Impact

The meeting embeds feature used in the online or hybrid meetings is subject to potential XSS attack through a malformed URL.

Patches

Not available

Workarounds

Disable the creation of meetings by participants in the meeting component.

References

OWASP ASVS v4.0.3-5.1.3

Credits

This issue was discovered in a security audit organized by mitgestalten Partizipationsbüro against Decidim. The security audit was implemented by the Austrian Institute of Technology.

Impact The admin panel is subject to potential XSS attach in case an admin assigns a valuator to a proposal, or does any other action that generates an admin activity log where one of the resources has an XSS crafted.

Patches

N/A

Workarounds

Redirect the pages /admin and /admin/logs to other admin pages to prevent this access (i.e. /admin/organization/edit)

References

OWASP ASVS v4.0.3-5.1.3

Impact

The admin panel is subject to potential XSS attach in case the attacker manages to modify some records being uploaded to the server.

The attacker is able to change e.g. to <svg onload=alert('XSS')> if they know how to craft these requests themselves. And then enter the returned blob ID to the form inputs manually by modifying the edit page source.

Patches

Available in versions 0.27.6 and 0.28.1.

Workarounds

Review the user accounts that have access to the admin panel (i.e. general Administrators, and participatory space's Administrators) and remove access to them if they don't need it.

References

OWASP ASVS v4.0.3-5.1.3